Exercise 1. Check the meanings of the words in the box and match them with pictures 1-9. Then complete the text with the correct words.
(Kiểm tra nghĩa của các từ trong khung và nối chúng với bức tranh 1-9. Sau đó hoàn thành văn bản với các từ đúng.)
feathers scales legs hair wings lungs fins backbones gills |
Vertebrates
Vertebrates are animals with backbones. The following groups are the different types of vertebrates.
Fish
Fish are cold blooded animals and they live in water. They have got scales and (1)………… . They haven't got lungs. They have got (2)………… instead.
Mammals
All mammals are warm-blooded and they feed their babies milk. Most mammals live on land, for example, humans and dogs. However, some mammals, like whales, live in water, but they haven't got gills. Mammals have all got (3)………… .
Birds
Birds live on land, but some of them look for food in the water. They have got (4)………… , two legs
and two (5)………… . Some birds, like ostriches and kiwis, can't fly. All birds lay eggs.
Amphibians
When amphibians are young, they live in water and they haven't got lungs. When they are adult, they have got lungs and four (6)………… - for example, frogs and toads.
Reptiles
Most reptiles live on land. They have got lungs and (7)………… but not gills. They haven't got any wings or feathers and they haven't got any (8)………… . They are cold blooded animals and many of them live in warm places.